So I got my hands on a couple of these old switches for my lab setup. They are better than the 2950s (have to use crossover cables on those ancient things) that I also have in the giant hardware stack in my lab, but not at all as nice as the 2960s that I have.
My particular 3550s (well at least the first one that I powered up) has a whopping 3mb cache which really stinks since Cisco has made IOS images for this switch free to download.
Anway, here is the software config guide. I am sure that I will be referencing this in the not so distant future.